Add CONTRIBUTORS file
Add CONTRIBUTORS file

Psykar/kubos,pacheco017/libcsp,Psykar/kubos,marshall/libcsp,marshall/libcsp,pacheco017/libcsp,Psykar/kubos,marshall/libcsp,Psykar/kubos,satlab/libcsp,kubostech/KubOS,kubostech/KubOS,libcsp/libcsp,libcsp/libcsp,Psykar/kubos,GomSpace/libcsp,pacheco017/libcsp,Psykar/kubos,GomSpace/libcsp,satlab/libcsp,Psykar/kubos,satlab/libcsp,pacheco017/libcsp,GomSpace/libcsp